Product DescriptionMultifunctionalThis product is ideal for picnics, camping, beach, outdoor concerts, tailgates, stadium, sporting events and any other time you'll be hanging out outside.Sturdy And DurableThis product are made of three polyester fabric on the top, sponge layer in middle and aluminium film bottom, waterproof Aluminum foil with water-resistant backing and handy carry strap, which makes this blanket become sturdy and durable and you can use it for a long time.Advanced FeaturesAluminum foil bottom of the blanket is waterproof and environmentally friendly, The waterproof feature of the bottom material makes it great for use on grass or whenever the ground is damp because it prevents moisture from coming through. It's also good in the sand because unlike softer, more fibrous blankets, this won't collect sand as a regular blanket would. It's easy to shake off the sand and then fold it up when you're done using it.Easy to Clean This blanket can be machine washed. You don't need to wash by yourself again.FAQsDoes anyone use this on the beach? Is it really sand-proof? yes, it is sand-proof.How much does it weigh? Will the wind blow it away at the beach? Different sizes have different weigh, they will not blow away at the beach, you can choose the size you need.Will dry grass get stuck to the polyester side? It's not easy to stick to the grass.Can you put this in the dryer? No, please do not put it in the dryer. You can hang it to dry after washing it in the machine.